What is the substitution to 3x y=-16 5x y=-20?

A wooden fence 6 ft. high and 300 ft. long is to be painted. How many gallons of paint are needed if one gallon covers 400 sq ft?

You need about 1 1/2 hours to set up a computer workstation. At this rate, how many hours should it take you to set up 7 of these workstations? A 4 2/3 B 8 1/2 C 10 D 10 1/2 E 11 2/3

Mrs. Nellon's class sold 18 rolls of wrapping paper. In all, the school sold 82 rolls. About what percent of the sales came from Mrs. Nellon's class?

The ratio of the number of miles Kyle drives to the number of hours he is driving is 468 to 9. What is Kyle's rate of speed? A) 52 miles per hour B) 56 miles per hour C) 64 miles per hour D) 68 miles per hour Submit

Beth filled 32 jars with paint. If each jar holds 1 pint of paint how many gallons of paint did Beth use

Georgetown Theater issued 5,200 tickets last weekend. This weekend, the theater issued 74% fewer tickets. How many tickets to comedies did the theater issue this weekend? 1,343 tickets 1,352 tickets 1,342 tickets 1,354 tickets

A person in a balloon which is 2,000 feet above the airport finds that the angle of depression to a ship out at sea is 21°. Find the horizontal distance between the balloon and the ship.

Information about the five planets

A rectangular prism has a volume of 100 cubic meters. One of the dimensions is 5 meters. Which pair of measurements could be the other two dimensions of the prism? 1. length = 5 meters, width = 4 meters 2. length = 5 meters, width = 5 meters 3.

There are five people sitting around the dinner table. Each person has 2/10 of a pie on their plate. How much pie is left? Explain